| 1993-2000 | Lecturer of Mathematics (University of Sistan and Baluchistan) |
| 2000-2004 | Assistant Professor of Mathematics (University of Sistan and Baluchistan) |
| 2004-2008 | Associate Professor of Mathematics ( University of Sistan and Baluchistan, Shahid Beheshti University) |
| 2008-to date | Professor of Mathematics (Shahid Beheshti University) |
Shahid Beheshti University
